The phrase
"after consulting one's doctor" means to seek medical advice from a healthcare professional before taking any action or making a decision about your health.
Full definition
Three weeks later,
after consulting her doctor, the nurses at the hospital, and her baby's pediatrician, she called it quits.
After consulting your doctor, you can thicken the milk by adding rice cereal into it.
Three weeks later,
after consulting her doctor, the nurses at the hospital, and her baby's doctor, she called it quits.
You may also want to ensure your registration forms include a health waiver stating the participants do so at their risk,
after consulting their doctors.